19780836

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^2\times {\mathrm{443}}^1$

素因数の和:572

約数の個数: 36

約数和(自身を含む): 47030256

約数和(自身を除く): 27249420

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 183, 244, 366, 443, 732, 886, 1329, 1772, 2658, 3721, 5316, 7442, 11163, 14884, 22326, 27023, 44652, 54046, 81069, 108092, 162138, 324276, 1648403, 3296806, 4945209, 6593612, 9890418, 19780836]

約数ペア:

[(1, 19780836), (2, 9890418), (3, 6593612), (4, 4945209), (6, 3296806), (12, 1648403), (61, 324276), (122, 162138), (183, 108092), (244, 81069), (366, 54046), (443, 44652), (732, 27023), (886, 22326), (1329, 14884), (1772, 11163), (2658, 7442), (3721, 5316)]